[pve-devel] has somebody already tested corosync3 alpha et new knet transport ?

Dietmar Maurer dietmar at proxmox.com
Wed Jun 27 09:24:35 CEST 2018

> http://people.redhat.com/ccaulfie/docs/KnetCorosync.pdf
> Other options in the interface section do just what you might expect.
> mcastport: <n> 
>   tells knet to use that port number <n> for communication,. The default
> remains the old one of 5405
>   +linknumber, but you can override it per link here. Even though knet doesn't
> do actual multicasting
>   the name remains for old time's sake
> If it's really working without multicast, with lower latencies, that's a big
> improvement :)

I am a bit scared by those benchmarks. They test with up to 4 nodes, and
conclude that 
they do not need multicast?! IMHO, it's quite obvious that you do not need
for such small clusters, but it is essential if you want bigger clusters - else
you will
produce too much traffic on the net.

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